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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Which language? If it is C#, doesn't seem possible with
int nb_petals = rnd.Next(1, 65536);
1 is the lower bound.This comment is hidden because it contains spoiler information about the solution
I don't know where do you see that (in the wording), not a kata issue. Added an unsorted example to the description to make that clearer.